Open AccessUltra-high-resolution SD-OCM imaging with a compact polarization-aligned 840 nm broadband combined-SLED source
Author(s) -
Richard Haindl,
M. Duelk,
S. Gloor,
Jean Dahdah,
José Ojeda,
Caterina Sturtzel,
Shiyu Deng,
Abigail J. Deloria,
Qian Li,
Mengyang Liu,
Martin Distel,
Wolfgang Drexler,
Rainer A. Leitgeb
Publication year - 2020
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.394229
Subject(s) - superluminescent diode , optical coherence tomography , broadband , optics , image quality , optoelectronics , polarization (electrochemistry) , bandwidth (computing) , materials science , diode , spectral imaging , physics , computer science , telecommunications , chemistry , artificial intelligence , image (mathematics)
We analyze the influence of intrinsic polarization alignment on image quality and axial resolution employing a broadband 840 nm light source with an optical bandwidth of 160 nm and an output power of 12 mW tailored for spectral-domain optical coherence microscopy (SD-OCM) applications. Three superluminescent diodes (SLEDs) are integrated into a 14-pin butterfly module using a free-space micro-optical bench architecture, maintaining a constant polarization state across the full spectral output. We demonstrate superior imaging performance in comparison to traditionally coupled-SLED broadband light sources in a teleost model organism in-vivo .